Ford Transit Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) is a critical component of the Ford Transit's anti-pollution system. Its main role is to capture and filter harmful soot particles from the exhaust gases to reduce emissions and protect the environment. Like any filter, it needs to be regularly cleaned or regenerated to maintain its proper functioning.

The DPF periodically undergoes an automatic regeneration process during normal driving conditions to burn off accumulated soot and restore filter efficiency.

• This process generates very high exhaust gas temperatures and considerable heat.
• Automatic regeneration stops when soot levels reach around 50 grams.
• Forced regenerations can be initiated via a diagnostic tool to clean the system if necessary.
• There are two types of regeneration: static (while vehicle is stationary using diagnostic equipment) and dynamic (while driving).

Regular regeneration helps maintain engine performance and reduce emissions.

The Ford Transit DPF system comprises several key components:

• A catalytic converter located at the upper part of the system.
• The particulate filter situated in the lower section.
• Two differential pressure sensors (upstream and downstream) connected by pressure pipes to monitor soot accumulation.

Additionally, some models with 2.2 TDCi engines have a fuel vaporizer integrated into the DPF system to aid regeneration by injecting fuel. This vaporizer may require cleaning or replacement if malfunctioning.

The main fault codes related to the DPF system on Ford Transits are:

• P246C:00 AF / P2463 – Indicates a blocked or clogged diesel particulate filter.

These codes signal that the DPF requires immediate attention to avoid engine and emission system damage.

Before cleaning the DPF, several diagnostic tests should be performed:

• Smoke test to check for air leaks that could cause DPF issues (e.g., turbo or boost leaks).
• Fuel vaporizer test via diagnostic tools to verify its proper operation.
• Check differential pressure sensors for correct readings.

The cleaning process involves:

• Filling the DPF with a specialised cleaning product (such as Wands DPF Cleaner).
• Allowing the product to soak for at least 20 to 30 minutes.
• Performing a static regeneration using diagnostic equipment to remove residues and cleaning agents.
• Driving the vehicle for approximately 20 minutes to clear out remaining product.
• Resetting the soot level through the vehicle's adaptation parameters.

These DPF maintenance and service guidelines apply to several Ford Transit generations and models including:

• Ford Transit Custom 2.0 TDci
• Ford Transit MK8 2.2 TDci
• Ford Transit Connect MK2 1.5 TDci 75 CV
• Ford Tourneo Connect

Ensure the parts and service procedures match the exact model and engine type for best results.

A DPF is considered clogged when:

• Soot level exceeds approximately 50 grams.
• Automatic regeneration cycles no longer function.
• Forced regeneration attempts via diagnostic tools fail.

In such cases, cleaning procedures should be attempted first. If those are ineffective, replacement of the DPF might be necessary. Proper diagnostics by expert technicians is recommended.

To reduce fouling and enhance DPF performance, consider the following maintenance tips:

• Use injection cleaning additives (e.g., Cody Mille) regularly to keep the injection system clean and reduce particulate buildup.
• Add quality fuel additives (e.g., C99) to improve combustion efficiency and reduce soot formation.
• Drive the vehicle regularly on highways or routes that allow the DPF to regenerate properly.
• Address any fault codes promptly with proper diagnostic tools to avoid compounding damage.

Following these recommendations supports long-term DPF functionality and helps keep your Ford Transit running efficiently and within emission regulations.